Video Streaming in Vehicular Ad Hoc Networks: Applications, Challenges and techniques

Nowadays Vehicular Ad hoc Networks (VANETs) receive important attention in the scientific and commercial fields due to the increasing number of devices and applications concentrating on safety, efficiency and infotainment in transportation infrastructure. One of the most promising applications is the streaming of video data which presents a suitable tool especially for warning drivers and preventing dangers on roads. However, video streaming over vehicular environment is a daunting task due to high movement of vehicles and the specific requirements of video data in terms of performances and quality of service (QoS)/quality of experience (QoE). To this end, this paper presents a survey of video streaming techniques in vehicular networks and discusses the different QoS/QoE related to video streaming issues. A comparative study of QoS/QoE aware video streaming schemes classified according to the technique used is elaborated. Furthermore, major challenges in video streaming are identified as future trends of research.